Dozens of houses in the Adirondack Mountains are reminders of a literal "cottage industry" to cure people of a deadly disease.

A 13,000-year-old mastodon skeleton was found during the construction of a 19th-century New York mill.

Etchings in a pile of boulders on the Long Island Sound are a monument to vanquished native peoples.

A feminist who put a pretty face on suffrage when she rode a horse through the Capitol.

This memorial in the Adirondack wilderness honors the accidental death of a Scottish entrepreneur.

The private island of Yale's elite Skull & Bones society is kind of a dump.

A historic home with ties to the abolition and suffrage movements.

This magnificent herd of stampeding elephants has been frozen in time for over a century.

It wouldn't be long after purchasing this farm, Brown would lead his siege on Harper's Ferry.

The home of one of America's most beloved fictional characters has become a real world landmark.

A historic Black graveyard hidden in the parking lot of one of America's largest malls.

This metal eagle one of the final remnants of a newspaper that wanted to keep Brooklyn to Brooklyn.

This Frank Lloyd Wright summer house was designed along Lake Erie as a retreat for a client's wife.

This unusual subway stop was originally a real estate office.

Hidden behind a gate in Greenwich Village is a little farmhouse that once served as the writing studio of a bestselling author.

Golden plates containing what would become the Book of Mormon were believed to be buried on this New York hillside.

The second largest maple syrup producer in the U.S. runs a high-tech operation.

From this desk Al Hirschfeld drew his influential caricatures of the 20th century's Broadway stars.

This abandoned artificial island off the coast of New York City is now home to dozens of harbor seals.

This preserved wilderness hides the remains of a colonial grain mill used to feed George Washington's troops.

Twenty-three trees, each paired with a basalt stone, line a street in Chelsea, continuing an urban project started by German Fluxus artist Joseph Beuys.

The pioneering photographer's prints are immortalized inside her childhood home.

A near tragic event on this bridge helped inspire the classic film "It's a Wonderful Life."

This private island is still in the family after a 400-year history including a witch hunt and a pirate.